Me and my friend were having a coffee in a coffee shop and then she told me the story of how she got fired.
So back then storing data on cloud was not that convenient and employees in her company used to carry softwares and other stuff in pendrives.
This one day after completing a MAJOR project for a very irritating client, my friend and her team decided to take the day off and celebrate this victory in a pub.
She got drunk and then came the call of her boss saying that they needed to showcase the software right then to the client.

Being always responsible and committed to her work my friend had decided to keep a backup in her pendrive which she kept in her breast pocket of her shirt.

So she goes into the washroom to freshen up, bends down near the toilet to vomit out liquor and lo!

The pendrive slid all the way down from her pocket into the toilet sink.
She didn't notice and flushed and down went the whole project into the sewer.

Moral - life fucks you in ridiculous ways.

Ps. She left her laptop at her home which was very far from her office and the pub. The team had to go to her home first to retain the project and eventually got seriously late. Boss didn't like it as the client was a real pain in the ass and this was a big project too and being the team lead my friend was supposed to deliver as expected.
She got fired.